62. No sooner had we reached the top of the hill ______ we all sat down to rest.    A)when     B)then     C)than     D)until 参考答案问什么会是C

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No sooner... than...是固定搭配,表示"一....就....."我们一到达山顶就坐下来休息.

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固定搭配

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B

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固定用法